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Voltage translation and integrated circuits with stacked voltage domains

A technology of integrated circuits and voltage converters, which is applied to conversion equipment, logic circuits, and electrical components without intermediate conversion to AC, and can solve problems such as deterioration of efficiency problems

Active Publication Date: 2015-12-09
INT BUSINESS MASCH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the power loss on the delivery grid is proportional to the square of the voltage (V 2 ) is inversely proportional, so the efficiency problem with respect to power delivery is for the so-called "low" V DD circuit (e.g. about 300-500 millivolts (mV))

Method used

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  • Voltage translation and integrated circuits with stacked voltage domains
  • Voltage translation and integrated circuits with stacked voltage domains
  • Voltage translation and integrated circuits with stacked voltage domains

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Embodiment Construction

[0029] An integrated circuit (IC) system with stacked voltage domains, voltage level shifting and voltage stabilization is disclosed herein. Briefly, an example embodiment of the disclosed system includes a plurality of ICs operating in divided and serially stacked voltage domains, where each domain has a nominal supply voltage value (V dd ) is roughly equal to the voltage drop across them. For example, the first integrated circuit is connected between ground and V dd operates within the voltage domain between, the second integrated circuit is at V dd with about 2*V dd operates in the voltage domain between, while the third integrated circuit operates at 2*V dd with about 3*V dd operate within the voltage domain between. However, other stacked ICs are also conceivable.

[0030] While most of the power of the disclosed system can be passed directly down through the IC, a reversible switched capacitor voltage conversion system is used to stabilize the divided voltage domai...

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Abstract

An integrated circuit (IC) system includes a plurality of ICs configured in a stacked voltage domain arrangement such that a low side supply rail of at least one of ICs is common with a high side supply rail of at least another of the ICs; a reversible voltage converter coupled to power rails of each of the plurality of ICs, the reversible voltage converter configured for stabilizing individual voltage domains corresponding to each IC; and one or more data voltage level shifters configured to facilitate data communication between ICs operating in different voltage domains, wherein an input signal of a given logic state corresponding to one voltage in a first voltage domain is shifted to an output signal of the same logic state at another voltage in a second voltage domain.

Description

technical field [0001] The present invention relates generally to voltage conversion technology and more particularly to a reversible voltage conversion system and integrated circuit (IC) system with stacked voltage domains, voltage level shifting and voltage stabilization. Background technique [0002] Power management has become a key component of advanced computing architectures, including high-end microprocessor systems and mobile electronic devices. However, existing on-chip solutions have had limited success in simultaneously achieving high output current and high power conversion efficiency. [0003] Specifically, the nominal supply voltage (V DD ) values ​​have gradually decreased over the past few years due to performance and power upgrades. Conversely, maintaining efficiency in the power delivery system has increased with V DD It becomes more difficult as the ratio drops. at V DD = 1 volt (V), from the external supply to the V DD The energy loss of the operat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/36
CPCH03K3/00H02M3/07H03K3/356139H03K19/01806H03K19/018521
Inventor R·H·登纳德B·L·季
Owner INT BUSINESS MASCH CORP